81307010

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{1549}}^1$

素因数の和:1766

約数の個数: 32

約数和(自身を含む): 152334000

約数和(自身を除く): 71026990

約数列:

[1, 2, 5, 10, 29, 58, 145, 181, 290, 362, 905, 1549, 1810, 3098, 5249, 7745, 10498, 15490, 26245, 44921, 52490, 89842, 224605, 280369, 449210, 560738, 1401845, 2803690, 8130701, 16261402, 40653505, 81307010]

約数ペア:

[(1, 81307010), (2, 40653505), (5, 16261402), (10, 8130701), (29, 2803690), (58, 1401845), (145, 560738), (181, 449210), (290, 280369), (362, 224605), (905, 89842), (1549, 52490), (1810, 44921), (3098, 26245), (5249, 15490), (7745, 10498)]